C-Deep (formerly known as RTLX developed by Insider Technologies Limited) is an enterprise-grade, real-time transaction and payment monitoring software product. It is currently owned, maintained, and distributed globally by ETI-NET.
Product Overview & Key Features
The primary objective of C-Deep for HPE NonStop is to ensure fault tolerance, detect transactional vulnerabilities, and prevent outages within major financial ecosystems.
Target Environment: It is deployed alongside primary mission-critical payment engines, primarily operating as a high-performance add-on to ACI Worldwide’s BASE24™ solution or as a standalone tracker on HPE NonStop systems.
Architecture: The software utilizes lightweight extraction clients on the NonStop kernel to read Transaction Log Files (TLF) and POS Transaction Log Files (PTLF). It offloads data parsing to a C-Deep collector on Windows Server, keeping the primary switch’s CPU overhead at zero.
Data Retrieval: It stores and indexes historical transaction fields into annual databases for 10+ years, making it fully searchable to meet strict data regulatory compliance laws.
Granular Querying: Operators can isolate variables down to Bank Identification Numbers (BIN), detecting interchange timeouts, clearing delays, or switch drops down to the millisecond.
Detailed Timeline Breakdown by Era and Year
The technical evolution of this platform reflects the wider political and economic changes in global banking, transitioning from early bespoke mainframe logs to modern, automated cyber-resiliency environments.
🔹 The Foundational & Legacy Tandem Era (1989–2000)
This era centered around high-security, fault-tolerant mainframes built for NATO-aligned military communications and early banking networks following the end of the Cold War.
1989: Insider Technologies Limited is incorporated in the UK to manufacture specialized monitoring code for highly robust computer systems.
1990–1995: The vendor releases its foundational “Reflex” software suite for the Tandem Guardian operating system, offering real-time transaction diagnostics without interrupting physical processing operations.
1996–1999: The platform adds “MultiBatch” automation to orchestrate complex batch settlements. Engineering pivots toward critical Y2K code auditing to prove that automatic logging routines would survive the year 2000 date rollover.
🔸 The Multi-Platform & Financial Compliance Era (2000–2015)
This era mark’s the product’s rise to prominence as a core tool for transaction transparency across global clearings houses, reacting to rapid financial sector deregulation.
2001–2003: The architecture scales up from simple hardware tracking into dedicated operational security. The vendor expands the footprint into financial clearings, tracking transaction security for system-critical clearers like the Bank of England.
2004–2007: The developer releases RTLX (Real-Time Transaction Logging/Reactor), standardizing visibility from the point-of-sale terminal tap to the back-end ledger settlement. It adds cross-compatibility for Windows, Unix, and Linux systems alongside standard Tandem NSK systems.
2008–2012: Amid market volatility following the 2008 financial crash, transaction tracking rules tighten. RTLX adds specialized configuration engines to map high-volume dates (e.g., Black Friday) to proactively flag message queues and clear bottlenecks before causing outages.
🔹 The Acquisition & Integration Era (2015–Present)
This era sees consolidation in the HPE NonStop market, transforming the legacy product into a fully modern cyber-resilient and automated tracking ecosystem.
2015–2021: Real-time transaction frameworks become critical for compliance. To expand global distribution channels, ETI-NET formalizes an agreement to acquire and absorb Insider Technologies’ core system software catalog.
2022–2023: ETI-NET rebrands the classic software stack to streamline its message. The system monitoring side (Reflex) becomes Sentinel, while the specialized payment switch transaction monitor (RTLX) is official re-launched as C-Deep for Transaction Monitoring.
2024: ETI-NET pushes C-Deep through HPE Pointnext Services, making it directly purchasable within standard Hewlett Packard Enterprise customer channels. Integrations are updated to match the NIST 2.0 Cybersecurity Framework.
2025–2026: Modern upgrades focus heavily on end-to-end data auditing, automated email/SMS alerting systems, and specialized dashboard analytics tailored for complex, multi-currency transaction paths.
ETI-NET C-Deep real-time transaction and payment monitoring product timeline
Focus: Electronic banking programming and development on Tandem Mainframe Computers.
Projects: Wrote, developed, and maintained software like sp/ARCHITECT-BANK and associated billing software (in Poole, 1993). This involved building early electronic banking systems for desktops long before internet banking was prevalent.
Location: Insider Technologies, Salford Quays, Manchester, UK
Focus: NonStop product management, software design, and real-time event monitoring.
Projects: Product managed software lifecycles for four monitoring products (two NonStop based). This included creating health and diagnostic tools (RTLX, Reflex 80:20, Reflex ONE24,XPERT24) for mission-critical NonStop environments. He also deployed volume testing on early HP NonStop S7000 nodes for CRESTCo in London in 1997.
Insider Technologies, Salford Quays, Manchester, UK
Location: Wincor Nixdorf & ATM/POS Financial Services, UK
Focus: Modernization and migration of legacy systems.
Projects: Managed a £5M+ replacement of legacy HP NonStop software systems at a large UK retail bank, migrating functionalities to AIX-based J2EE and Oracle architectures.
Focus: Delivery of enterprise-scale middleware, digital transformation, and cloud.
Projects: Acts as an Engagement Manager and SC-Cleared Project Manager. Focus includes Agile software delivery for Air Traffic organisations (e.g., iOS applications for military and public-facing airspace tracking) and rolling out middleware solutions.
Running natively on the fault-tolerant HPE NonStop platform (formerly Tandem Computers), it utilizes a modular architecture to acquire, authenticate, route, and authorize financial transactions.
BASE24 Electronic Funds Transfer (EFT) software application developed by ACI Worldwide, Overview
The application modules of ACI BASE24 (spanning Classic and modern BASE24-eps configurations) are categorized in complete detail below:
💳 Channel Acquisition Modules
These front-end modules connect directly to consumer-facing self-service devices and touchpoints to ingest financial messages.
BASE24-pos: Facilitates electronic data interchange with Point of Sale (POS) merchant terminals, accepting debit, credit, and smart card transactions.
Stored Value Module (SVM): A localized sub-component within channel management dedicated to the online issuance, balance check, and validation of stored-value gift cards.
🔄 Routing, Switching, & Interfacing Modules
These modules orchestrate the delivery of messages from endpoints to localized authorization hosts or global networks.
BIC ISO Interface: Implements standard ISO 8583 payment messaging protocols to communicate directly with major international networks (such as Mastercard or Visa).
ACI Commerce Gateway: Operates as a secure payment gateway firewall, linking internal HPE NonStop processing routines with public internet channels.
🔐 Security & Authentication Modules
Data integrity modules protect transactions and enforce industry-standard security.
Transaction Security Services (TSS): Manages PIN verification, encryption/decryption tasks, and hardware security module (HSM) messaging, including native Triple DES (3DES) support.
These back-end engines decide whether a transaction flight should be accepted, declined, or deferred.
Enhanced Authorization Module: Runs customized business logic scripting to evaluate cardholder limits, fraud signals, and stand-in authorization processing.
Positive Balance File (PBF) Interface: Interfaces with real-time local file structures to check account limits when backend core banking host systems are offline.
📊 Back-Office & Data Management Modules
These modules ensure post-transaction data is accounted for, settled, and audited.
Interchange Log File (ILF) / Transaction Log File (TLF for ATM, PTLF for POS): Core architectural data constructs that maintain comprehensive records of all ongoing financial messages for balancing and error recovery.
BASE24-infobase: Provides centralized tools for operational reporting, financial data clearing, settlement processing, and accounting audits.
🛠️ HPE NonStop System Integration Architecture
BASE24 is highly reliable because it integrates with native HPE NonStop mainframe utilities:
PATHWAY (PATHCOM): Acts as the transaction processing middleware to dynamically load-balance BASE24 server processes across multiple CPUs.
Enscribe & NonStop SQL/MX: Serves as the native flat-file or relational database layer optimized for low-latency, high-concurrency write operations.
HPE Shadowbase / AutoTMF: Interacts with the Transaction Monitoring Facility (TMF) to enable active/active dual-site replication, providing instant failover for near-zero transaction downtime.
ACI BASE24 core components on HPE NonStop mainframe platform
BASE24 Electronic Funds Transfer (EFT) software application developed by ACI Worldwide, Overview
Mark Whitfield’s project involvement with ACI Worldwide’s BASE24 / BASE24-eps and XPNET communication middleware is rooted deeply in his tenure at Insider Technologies Limited (ITL) and subsequent senior project management roles. His work primarily spans real-time performance monitoring, transactional tracking, and infrastructure management across HPE NonStop (Tandem) platforms.
His involvement across specific initiatives and client deployments is categorised below:
Product Development & R&D Projects
BASE24 XPNET Monitoring in Reflex ONE24
Role: R&D Lead and Software Developer.
Involvement: Researched and developed specialised software utilities to automatically detect and extract architectural information from XPNET components. He leveraged XPNET EMS (Event Management Service) events and user requests to facilitate real-time monitoring. These components were mapped into graphical drill-down object trees inside the Reflex Status Monitor application.
XPERT24 (Performance Monitoring & Tracking)
Role: R&D Lead, Technical Contributor, and Project Manager.
Involvement: Managed the lifecycle of this NSK-based monitoring tool, which tracks XPNET performance counters including states, traffic rates, and queues across lines, stations, nodes, and processes. The project also involved building mechanisms to track transaction approval and denial metrics over ATM and POS networks.
Client Deployment & Customisation Projects
HSBC Transaction Monitoring Project
Role: Technical Lead / Solution Designer.
Involvement: Designed and executed the implementation of ITL’s RTLX Reactor product on HP NonStop. The project required mapping monitoring solutions into HSBC’s heavily customised payment ecosystem to track ATM and POS transactions governed by BASE24.
Off-shore Retail Banking Transaction Tracking (Riyadh, Saudi Arabia)
Role: IT Project Manager (2013).
Involvement: Managed the delivery of a massive log-parsing project utilizing the BASE24 Classic payment framework. The project safely extracted, relayed, and optimized the parsing of multiple Terabytes of historical ATM and POS transaction logs archived on tapes, moving them into a modern reporting system.
Global Payments / Standard Chartered Integration Project
Involvement: Integrated real-time BASE24 transaction tracking and XPNET capabilities directly into external corporate enterprise frameworks, specifically IBM Tivoli and XPERT24.
Lloyds Banking Group (LBG) Estate Transformation
Role: Senior Project Manager.
Involvement: Led a massive migration strategy that decoupled ATM driving responsibilities away from BASE24 Classic running on HP NonStop platforms, transferring them to Wincor’s ProClassic Enterprise (PC/E) environment.
Mark Whitfield’s IT project management and software engineering career spans over three decades, progressing from early electronic banking programming on Tandem Mainframes (now known as HPE NonStop) to senior delivery of enterprise-scale middleware, cloud, and digital transformation initiatives.
The high-level chronological timeline (with links) of his professional eras and key project history is broken down below.
💻 1990–1995: Early Programming & Lead Analysis Era
During this foundational era, Whitfield operated as a Programmer and Lead Analyst specializing in core electronic banking software frameworks.
The Software Partnership / Deluxe Data (1990–1995): Developed and enhanced the sp/ARCHITECT-BANK platform. His technical responsibilities focused heavily on coding within Tandem Mainframe environments (now HPE NonStop) using C, C++, TAL, COBOL, and PATHWAY architectures.
Deluxe Data International Operations, Wingate House, Northway, Runcorn
Barclays On-Site Delivery (Early 1990s): Deployed on-site at the Barclays facility in Knutsford, Cheshire. He was responsible for core code development and system architecture design on the Barclays Business Master II (BBM II) electronic banking initiative and subsequent billing modules developed in Poole, Dorset.
Barclays, Wimborne Road, Poole, Dorset
🛠️ 1995–2013: Senior Development & Strategic Project Management Era
Transitioning to Insider Technologies Limited at Salford Quays, Manchester, Whitfield progressed into high-level technical project delivery and strategic product management.
Insider Technologies Limited (ITL) in 2001, Salford Quays, Chandlers Point
Reflex Monitoring Suite R&D (1995–1996): Appointed as a core developer to design platform health and diagnostic plug-in modules for the flagship Reflex 80:20 tracking console.
CRESTCo Infrastructure Integration (1997–1998): Acted as a technical infrastructure consultant for CRESTCo (now Euroclear). Managed hardware benchmark coding and testing for newly deployed Tandem S7000 processing nodes.
CRESTCo in 1997 on St. Katherine’s Dock near Tower Hill tube station
Real-Time Tracking Protocols (1999–2001): Oversaw multi-organizational telemetry deployments for the Bank of England and Deutsche Bank, leveraging specialized MultiBatch scheduling utilities and automated file monitors.
Hewlett-Packard (HP) Certification Initiative (2002–2003): Successfully drove the rigid compliance and verification process to secure official certification for the first HP OpenView Operations (OVO) Smart Plug-In built for NonStop mainframe environments.
First HP OpenView Operations Smart Plug-In for HPE NonStop environments
ATM Log Extraction Deployments (2004–2007): Led technical delivery teams implementing automated transaction log extraction layers (RTLX and Sentra) to audit ATM networks for major retail financial brands like Alliance & Leicester (now Santander) and HSBC.
Cross-Border Retail Banking Rollout (2008–2010): Served as Project Manager overseeing a high-volume, cross-border ATM and Point-of-Sale (POS) environment monitoring expansion for a prominent Saudi Arabian Retail Bank.
Cross-border ATM and Point-of-Sale (POS) environment monitoring expansion
Enterprise Transaction Monitoring (2011–2013): Functioned as Project Lead to bridge retail banking transaction networks with corporate governance architectures. Integrated critical pathways for Standard Chartered and Global Payments into TIVOLI and XPERT24 using ACI’s XPNET infrastructure.
Wincor Nixdorf Banking Division (2013–2014): Retained as Project Manager for Professional Services. He directed a massive hardware and software transition stream for Lloyds Banking Group’s Self-Service Software Replacement (SSSR) programme whilst also providing a qualified management link with Wincor Nixdorf, Paderborn (Germany) for subject matter expertise, as part of the transition.
🎮 2014–2016: Digital Infrastructure & Enterprise Betting Era
Whitfield shifted his delivery domain focus from banking mainframes into real-time high-transaction digital platforms.
Betfred Project Delivery (2014–2016): Managed IT infrastructure and digital systems alignment projects, supporting high-throughput retail and digital consumer gaming workflows.
☁️ 2016–Present: Cloud Integration, Middleware, & Public Sector Era
In this current era, Whitfield acts as a senior, SC-cleared Senior IT Project Manager specializing in hybrid cloud migrations and API-led integration.
Capgemini UK Consultancy (2016–Present): Leading massive corporate and public sector agile/waterfall delivery initiatives. His technical program management footprint expands across a vast roster of tier-one enterprise environments:
MuleSoft Ecosystem Deployments: Directing system integration projects utilising the Salesforce MuleSoft suite, spanning API lifecycle design, Anypoint Code Builder configurations, and hyper-automation flows.
Multi-Sector Enterprise Clients: Orchestrating cloud migrations, middleware application refactoring, and data pipelines for Jaguar Land Rover (JLR), Heathrow Airport, Royal Mail Group (RMG), NATS (National Air Traffic Services), Welsh Water, Rabobank, Barclays, and UK Export Finance (UKEF).
C&CA UK’s Communications & Engagement Award Winner 2022 – Cloud & Custom Applications – Capgemini UK
HP OpenView Operations (OVO) is a foundational enterprise systems management (ESM) platform designed to centrally monitor and manage infrastructure, multi-vendor operating systems, and enterprise applications across distributed IT environments.
The system operates on an Agent-Server Architecture. Core components include:
Management Server: Central hub that aggregates system logs, processes alerts, correlates events, and triggers automated remediation scripts.
Smart Plug-ins (SPIs): Specialized modular add-ons that inject domain-specific monitoring logic for applications like Oracle databases, Microsoft Active Directory, or SAP.
Intelligent Agents: Lightweight background processes deployed on managed nodes to collect log events, metrics, and state data, formatting them into structured OVO messages.
1. HP OVO screenshot in 2002
2. HP OVO screenshot in 2002
See bottom of this post for HPE NonStop (previously Tandem) monitoring in OpenText Operations Bridge Manager. I overlooked an integration with HP OpenView Operations for a HPE NonStop product in 2002, called Reflex 80:20.
Detailed Timeline Breakdown by Era and Year
🌅 Era 1: Origins and The Foundation (Late 1980s – 1994)
This era established HP’s footprints in IT infrastructure management, pivoting from pure SNMP network map discovery toward server telemetry.
Late 1980s: HP releases Operations Center (OpC) as an add-on application for its core Network Node Manager (NNM) platform. It replaces slow SNMP polling with Remote Procedure Calls (RPC) to gather host logs.
1990–1993: HP scales OpC into a robust engine capable of executing basic automation scripts on remote UNIX boxes when specific thresholds break.
🚀 Era 2: The “ITO” and OpenView Operations Boom (1995 – 2000)
The framework shifted from isolated utilities into an integrated, market-dominating enterprise suite.
1995: HP tightly merges NNM and Operations Center into a single product called IT Operations (ITO) Version 3.x.
1996:HP OpenView Service Navigator is embedded into the product line. It provides a graphical hierarchy of business services instead of just a raw list of broken servers.
1999: The suite formally adapts to include broad SNMP traps alongside its core agents and is renamed HP OpenView Operations ITO.
🔄 Era 3: Platform Split and VantagePoint Transition (2001 – 2006)
HP decoupled its codebases to natively handle Windows NT/2000 scaling alongside legacy Unix environments while heavily investing in product renaming.
2001: HP briefy rebrands the suite to HP VantagePoint Operations (VPO). However, customer brand loyalty forces them to quickly pivot back to the popular HP OpenView Operations (OVO) naming convention.
2002: Codebases officially bifurcate into OVOU (OpenView Operations for Unix) and OVOW (OpenView Operations for Windows, built natively on Microsoft WMI frameworks).
2005:OVO Version 8.0 drops. It features heavy integration capabilities for external service desks, advanced HTTP/HTTPS agent communication protocols, and a refreshed Java GUI console.
🏢 Era 4: The Business Technology Optimization (BTO) Era (2007 – 2016)
Massive corporate acquisitions changed the software landscape. OVO ceased to be a standalone system monitoring tool and transformed into an automated operations center.
2007: HP drops the legendary “OpenView” moniker. Following the acquisitions of Mercury Interactive, Peregrine, and Opsware, the suite is rebranded as HP Operations Manager (HPOM) under the HP Business Technology Optimization (BTO) banner.
2009: HP rolls out Operations Manager i (OMi), integrating topology-based event correlation (TBEC) to suppress duplicate alert storms across the data center.
2015: Hewlett-Packard splits into two companies; the portfolio lands under Hewlett Packard Enterprise (HPE). The engine is bundled into the HPE Operations Bridge (OpsBridge) suite.
☁️ Era 5: Divestiture and Modern Legacy (2017 – Present)
2017: HPE spins off its enterprise software division. The entire legacy OpenView/Operations Manager portfolio is sold to Micro Focus.
2023:OpenText completes its acquisition of Micro Focus. The underlying technical heritage of the old OVO agents survives today, evolved into cloud-ready containerized architectures inside the modern OpenText Operations Bridge cloud monitoring portfolio.
OpenText Operations Bridge Manager Screenshot example
HPE NonStop (previously Tandem) Monitoring
Micro Focus Operations Bridge (now part of OpenText AI Operations Management) provides end-to-end IT monitoring by consolidating data from over 200 sources. For HPE NonStop, it utilizes specialized Management Packs to ingest metrics, system events, and health data for comprehensive, real-time hybrid IT analysis.
To monitor HPE NonStop servers using the modern OpenText Operations Bridge/AIOps platform, the setup revolves around the Operations Bridge Manager (OBM) and targeted management packs:
Management Packs for HPE NonStop: OpenText provides specific management packs and solutions designed for NonStop systems. These capture system health, CPU/disk metrics, pathway status, and system messages.
Operations Agent: A lightweight agent is deployed directly on the NonStop nodes, which securely streams local performance data and events back to the central OBM console.
Centralized Event Consolidation: OBM acts as a “manager of managers”. It ingests the NonStop events and correlates them alongside data from your cloud (AWS/Azure), containers, and network endpoints.
AIOps and Remediation: The platform utilizes built-in machine learning to reduce alert noise and accelerate root cause analysis. You can also use automated Runbooks to automatically remediate known issues on the NonStop platform.
Because the platform has been fully integrated into the OpenText portfolio, these integrations are supported across containerized deployments, on-premise, or SaaS models.
BASE24 is an enterprise-grade electronic funds transfer (EFT) software suite developed by Applied Communications Inc. (now ACI Worldwide). It handles real-time transaction acquiring, authenticating, routing, switching, and authorization across ATMs, Point-of-Sale (POS) networks, and digital payment channels.
XPNET (Exchange Protocol Network) is the fundamental communications middleware layer designed explicitly for BASE24 on fault-tolerant systems. It acts as an abstraction layer managing interprocess communications (IPC), network protocols (e.g., Bisync, X.25, TCP/IP), line management, device messaging, and high-volume transaction routing. Together, they form the transactional backbone for a majority of the world’s top financial institutions.
RTLX Reactor (in 2012) for tracking BASE24-eps & BASE24 XPNET transactions
Deep-Dive Architecture and Technology Stack
1. BASE24 Core Design
Process Pair Architecture: Designed natively around Tandem’s process pairs. A Primary Process performs the active transaction switching while a Backup Process remains synchronized in a standby state. If the hardware or primary process fails, the backup takes over instantly with zero data loss or session drops.
Functional Modules: Divided into specific transactional entities:
ATM (Automated Teller Machine Device Handler): Direct control and state management of physical terminals using custom message streams (e.g., Diebold, NCR).
POS (Point of Sale): Merchant terminal management and merchant accounting integration.
Auth (Authorization Processor): Internal validation scripts against account records or stand-in limits.
2. XPNET Middleware Engine
Line and Station Infrastructure: XPNET maps communication through abstract configurations. A Line represents a physical or logical network pipe, and a Station represents an endpoint (e.g., an interchange gateway or terminal node).
Dynamic Load Buffering: Employs internal memory queue structures to absorb traffic spikes from international card networks (such as Visa and Mastercard) without spilling into disk storage.
Protocol Multi-threading: It decouples low-level link dynamics (e.g., CRC checking, dropouts) from core business logic, converting legacy and modern network formats into standardized internal transaction tokens.
Application Development Timeline & Political Breakdown
The timeline below details how geopolitical, regulatory, and corporate ownership developments directly shaped versioning and core code changes in BASE24 and XPNET.
Era 1: The Tandem & Expansionist Era (1975–1992)
Geopolitical & Industry Context: The rise of consumer credit card networks, personal checking accounts, and the physical expansion of banking via ATMs. Regional networks were fragmented, necessitating specialized software to cross-connect them.
Corporate Dynamics: Applied Communications Inc. (ACI) operated as an independent software house in Omaha, Nebraska, forming a deep partnership with Tandem Computers before being acquired by US West (1988) and later Tandem directly (1991).
Year-by-Year Code & Technical Milestones:
1975–1981: Initial exploration of high-availability banking systems on Tandem NonStop computers. Developers laid the groundwork using Tandem Screen COBOL and low-level communication drivers.
1982:BASE24 v1.0 officially launches. The original codebase was written in TAL (Tandem Application Language), a high-performance, structured system programming language designed specifically for NonStop systems.
1985: A primitive version of XPNET is spun out from early shared-memory messaging code to support multi-protocol lines (Bisync, Async) without forcing restarts of the core application.
1987: Introduction of early ISO 8583 message formatting engines within the core routing code. This allowed the software to natively interpret standard financial messaging frames across distinct interbank networks.
1991: Tandem acquires ACI. Code refactoring focused heavily on optimizing interactions with Tandem’s native file system (Enscribe) and expanding the XPNET process memory layout to take advantage of new Tandem CLX architecture performance.
Era 2: The TSA Corporate & Public Market Era (1993–2000)
Geopolitical & Industry Context: Globalization of financial services, the consolidation of national card switches, and the commercial explosion of internet banking and POS devices.
Corporate Dynamics: Tandem divested ACI to a private holding company, leading to the creation of Transaction Systems Architects (TSA) in late 1993. TSA went public on NASDAQ in 1995, pushing development velocity to meet Wall Street expectations.
Year-by-Year Code & Technical Milestones:
1993–1994: Standardized compilation routines moved to Tandem’s pTAL (portable TAL) to bridge code execution compatibility between older CISC-based architectures and the newly emerging MIPS RISC processors.
1995–1996: BASE24 version 4.x introduces advanced multi-institution handling inside a single logical codebase, allowing multi-tenant processing for third-party credit card consolidators.
1997: Release of BASE24 v5.x, featuring significant expansions in XPNET (v2.x) to accommodate native TCP/IP sockets alongside aging X.25 line infrastructures.
1998–1999: Heavy investment into Y2K compliance remediation. Code changes involved updating binary-coded decimal (BCD) date configurations, expanding date-storage windows across Enscribe files, and deploying the BASE24 Year 2000 System Assessment frameworks globally.
Era 3: Enterprise Platform Shift & Consolidation (2001–2014)
Geopolitical & Industry Context: Post-9/11 regulatory changes (e.g., USA PATRIOT Act), the implementation of modern security standards like Triple DES (TDES), and the birth of the PCI-DSS (Payment Card Industry Data Security Standard). Mainframes and alternative hardware processors (IBM, HP-UX) became fierce competitors to Tandem.
Corporate Dynamics: TSA officially rebranded to ACI Worldwide, Inc. (ACIW) in 2007. A strategic decision was made to rewrite the platform to break vendor lock-in and provide cross-platform flexibility.
Year-by-Year Code & Technical Milestones:
2001–2002: Standard cryptographic layers within BASE24 are systematically modified to enforce Triple DES compliance across automated teller machines.
2003: ACI introduces BASE24-eps (Enterprise Payments System). This marked a foundational architecture shift, moving away from TAL/pTAL entirely to an object-oriented paradigm written in C++ and designed to execute cross-platform (HPE NonStop, IBM z/OS, AIX, Linux).
2005–2006: BASE24-es/eps code integrates with enterprise middleware layers such as IBM WebSphere MQ, using CICS containers on z/OS to deliver modern service-oriented architecture (SOA) web services wrappers.
2008–2010:ACI shocks the banking industry by announcing the sunsetting of standard maintenance for classic Tandem NonStop BASE24 by late 2011. Millions of lines of legacy TAL code are effectively frozen, forcing major migrations toward BASE24-eps.
2011–2013: Code enhancements center around PA-DSS validation and securing encryption pathways to ensure tokenized processing. XPNET 3.x is deployed onto newer HP Integrity Itanium-based J-Series and H-Series blades.
Era 4: Modernization, Cloud-Native, and Open Systems (2015–Present)
Geopolitical & Industry Context: The dominance of Real-Time Payments (RTP, FedNow, ISO 20022 formats), cloud computing mandates, and aggressive cost-reduction pushes away from high-maintenance legacy hardware configurations.
Corporate Dynamics: ACI pivots sharply to open-ecosystem SaaS delivery, cloud partnerships (AWS, Microsoft Azure, Google Cloud), and co-development with IBM to optimize cross-platform throughput.
Year-by-Year Code & Technical Milestones:
2015–2016: BASE24-eps code is successfully ported to Red Hat Enterprise Linux (RHEL) on standard x86 processors. This architectural pivot offered a reduction in total cost of ownership (TCO) compared to legacy hardware by providing massive processing scaling.
2018–2020: The introduction of standard ISO 20022 messaging libraries into the switching matrix to support instant transaction settlement schemes globally.
2021–2024: Legacy middleware systems are phased down. Modern releases feature direct REST API hooks, cloud-adaptor hooks, containerised microservices integration, and extended configuration capabilities via the ACI Desktop GUI.
2025–2026: ACI partners with IBM to launch native 64-bit deployment optimizations for BASE24-eps running on IBM Z mainframes (including z16/z17 configurations), incorporating hardware-driven AI fraud analysis models and full PCI-SSF (PCI 4.0) certification.
Overview of BASE24 and XPNET plus application timeline by era
The core electronic banking software product sp/ARCHITECT-BANK was originally developed by The Software Partnership (TSP), a highly specialized British software house co-founded by Nigel Walsh in Runcorn, Cheshire.
Engineered to deliver high-availability, fault-tolerant electronic and desktop home-banking services, it ran natively on Tandem NonStop mainframe computers (now HPE NonStop).
The Software Partnership, Norton House, Crowngate, Runcorn, Cheshire
Over the decades, the product evolved through major corporate acquisitions, eventually being integrated into enterprise-level banking suites like CONNEX Advantage under eFunds and FIS.
🌅 Era 1: The Inception and Independent Software House Era (Mid-1980s–1993)
During this foundational era, The Software Partnership engineered the core product from scratch to meet the emerging demand for “Direct Electronic Banking” before the commercial internet became prevalent.
1985: The Software Partnership (TSP) is co-founded by Nigel Walsh in Runcorn, Cheshire. Development begins on a standard product architecture designed specifically for the transaction processing monitor (PATHWAY) and operating system (Guardian) of Tandem Computers.
1988–1989: The company establishes sp/ARCHITECT (and its core module, sp/ARCHITECT-BANK) as a premier client-server base package for corporate and home-office electronic banking.
1990: The engineering team scales up to build standard product releases written in COBOL85 and utilizing NonStop SQL databases. They develop proprietary testing utilities like sp/TESTBED to simulate PC-to-mainframe interfaces. Mark Whitfield joins the company after graduating in Computing in late 1990.
1991: Major deployment begins for the high-profile Barclays Business Master II (BBM II) desktop corporate banking application, with TSP placing teams (including Mark Whitfield) on-site at Barclays in Knutsford, Cheshire.
Barclays, Radbroke Hall, Knutsford, Cheshire
1992: A batch billing and invoicing suite of modules is engineered over 3-months and appended to the Barclays installation at Poole, Dorset. Mark Whitfield is assigned to this HPE NonStop (Tandem) billing/ invoicing development on the UK south coast. Simultaneously, TSP expands internationally into continental Europe.
Barclays, Wimborne Road, Poole, Dorset
1993: TSP develops an automated, touch-tone voice menu system for Girofon (Denmark). The code interfaces phone lines through Periphonics Interactive Voice Response (IVR) hardware directly into the back-end Tandem banking system. Concurrently, the core application handles desktop money transfers and early logic checking for clearing giants TSB and Bank of Scotland. Mark Whitfield is also involved with supporting this IVR technology.
🤝 Era 2: The Deluxe Data International Era (1994–1999)
Recognizing the massive European banking client footprints of sp/ARCHITECT, US-based electronic funds transfer (EFT) specialist Deluxe Data acquired TSP to merge their direct banking and card processing capabilities.
1994: Deluxe Data Corporation acquires The Software Partnership. The Runcorn offices are reorganised as Deluxe Data International Operations.
Deluxe Data International Operations, Wingate House, Northway
1995: The product undergoes heavy code optimization to satisfy customer acceptance loops for international clearers, notably deploying direct electronic banking solutions for major Dutch institutions like Rabobank. Mark Whitfield moves on from Deluxe Data (after 5 years) to Insider Technologies Limited in Salford Quays in late 1995. This to continue HPE NonStop programming work for both monitoring and diagnostic products like Reflex 80:20.
1996: Development transitions toward hybrid enterprise networking. The sp/ARCHITECT system is updated with custom TCP/IP software interfaces to allow newer mid-range UNIX servers (such as IBM RS/6000) to safely communicate with the core Tandem server environment.
1997: Deluxe Data expands the core platform’s messaging logic using Tandem’s Remote Server Call (RSC) facility. This enables early Windows NT operating systems to request live financial data from the sp/ARCHITECT host.
1998: An automated, multi-process file transfer protocol is integrated natively into the bank database, leveraging Connect:Direct transport layers to securely transfer corporate SWIFT financial data files.
🚀 Era 3: The eFunds & Corporate Consolidation Era (2000–2006)
Deluxe Data’s technologies spun off into a new corporate entity called eFunds Corporation, altering the delivery model of the legacy software.
2000: Deluxe Electronic Payment Systems officially merges with other divisions to form eFunds Corporation (EFD). The sp/ARCHITECT package becomes a core pillar of eFunds’ international banking portfolio.
2002–2004: To modernise the transaction handling backbone, components of the sp/ARCHITECT platform are refactored. The system’s underlying communication routing is systematically aligned with CONNEX, a dominant market-leading Electronic Funds Transfer (EFT) processing engine.
2005–2006: eFunds transitions the direct client-server software layers into highly secure corporate portals, providing the foundational logic for what would eventually be rebranded as the CONNEX Advantage banking solution.
🏢 Era 4: The FIS Integration and Legacy Modernisation Era (2007–Present)
The final stage of the product timeline represents its absorption into global banking infrastructure software, where its high-availability DNA remains active in institutional transaction environments.
2007: Financial technology behemoth Fidelity National Information Services (FIS) acquires eFunds Corporation for approximately $1.8 billion. Following industry consolidation, the corporate remnants of the original TSP Runcorn operations are absorbed into Fidelity National Information Services (FIS) and relocated to Aegon House in Daresbury, Warrington.
Fidelity National Information Services (FIS) Aegon House, Warrington (in 2007)
2010: FIS fully absorbs the remaining codebase, utilizing its core Tandem architecture algorithms to fortify transaction processing stability.
2015–2020: The architectural concepts pioneered by sp/ARCHITECT-BANK continue to govern high-volume legacy systems. The logic stays preserved in COBOL85 code bases running on modern HPE Integrity NonStop (Intel Xeon-based) fault-tolerant environments.
2020s–Present: Modern banking infrastructures gradually migrate from the classic database frameworks toward microservice configurations and open-banking APIs. However, the core system layout remains a primary point of historical reference for designing high-throughput, 24/7/365 fault-tolerant banking systems.
sp/ARCHITECT-BANK originally developed by The Software Partnership (TSP), Runcorn, Cheshire
sp/ARCHITECT-BANKCode Evolution Timeline
The timeline below details how the code’s core design, language implementations, and application deployment strategies transformed by era and year.
1. The Monolithic & TAL Foundation Era (1980s – Early 1990s)
During this era, the application focus was strictly high-throughput, fault-tolerant electronic funds transfer (EFT) and point-of-sale (POS) switching systems natively built for Tandem Guardian environments.
Late 1980s: The core design of sp/ARCHITECT is established using TAL (Tandem Application Language). Applications are deployed as single-system monoliths. Code optimization focuses heavily on low-level bit manipulation and message structuring to survive CPU or inter-process failures without losing in-flight transactions.
1991–1993: Structuring of modular execution libraries. Early iterations of the codebase segment transaction processing routes from core database logging routines. The introduction of Tandem’s newer NonStop SQL forces early integration layers to transition from standard unstructured unstructured file systems (Enscribe) to early relational tracking.
2. Distributed Client/Server & pTAL Migration Era (Mid 1990s – Early 2000s)
The architectural demands shifted from single-frame monoliths toward distributed banking systems, giving rise to “Distributed Monoliths” and client/server network structures.
1995–1996: Hardware evolutions transition from the older CISC-based Tandem systems to RISC architectures (MIPS processors). sp/ARCHITECT undergoes a massive compilation shift to pTAL (portable TAL) to preserve legacy code performance across new instruction sets.
1998–1999: Tandem’s acquisition by Compaq pushes the software suite to handle open standard protocols. The application code begins abstracting system calls to prepare for broader networking interfaces.
2001–2003: Deluxe Data / eFunds eras. The code sees the introduction of C/C++ wrappers around the legacy pTAL components. Systems are decoupled into a clear 3-Tier architecture: front-end terminal networks, back-end pTAL transactional engines, and standardized clearing houses.
3. Open Systems, Modern Middleware, & Java Integration Era (Mid 2000s – 2010s)
Following HP’s acquisition of Compaq and subsequent software realignments, the sp/ARCHITECT codebase was re-engineered to prevent vendor lock-in and adopt modern enterprise standards.
2005–2007: Java is introduced into the sp/ARCHITECT ecosystem. New application modules, specifically merchant portal interfaces and settlement reporting tools, are written entirely in Java and run via OSS (Open System Services) environments.
2010–2012: FIS acquisition era integration. Legacy pTAL code blocks are systematically refactored or heavily wrapped in C++ using object-oriented principles to ensure long-term maintenance. The transaction routing engine is altered to support early SOA (Service-Oriented Architecture) paradigms via web-services hooks.
2015–2018: Mainstream deployment of COB (Core Banking) standard formats within the application layer. The system moves away from old proprietary network messaging layouts to ISO 20022 compliance frameworks, utilizing dedicated conversion engines native to the sp/ARCHITECT stack.
4. Modern Cloud-Adjacent & Hybrid Infrastructure Era (2020s)
The current evolutionary footprint centers on maintaining the absolute sub-millisecond reliability of the core architecture while exposing capabilities to dynamic cloud endpoints.
2021–2023: Modernization of the application payload. High-performance micro-frontends handle real-time fraud monitoring and data streaming using asynchronous event-driven pipelines (e.g., Kafka event consumers interfacing directly with the NonStop core runtime environments).
2024–2026: Transition to containerized orchestration and cloud-adjacent infrastructure. The sp/ARCHITECT footprint utilizes x86-based virtualized NonStop systems (NSX), enabling legacy core modules (derived from the original TAL logic) to execute seamlessly on modern virtual environments alongside Linux-based multi-tenant applications.
Insider Technologies Limited is a specialized UK-based software house and service provider that engineers high-availability monitoring, tracking, and cybersecurity solutions for business-critical, 24/7 mission-critical architectures. I worked at ITL in Salford Quays from 1995 through to 2013.
Attending an EBUG conference (European BASE24 User Group)
Foreground, attending a British Isles TANDEM User Group (BITUG)
Insider Technologies Limited (website author in 2009)
CompanyOverview
🏢 Corporate Identity & Status
Legal Name: Insider Technologies Limited
Founded:27 February 1989
Headquarters: Manchester, UK (Albert Street, Eccles)
Ownership: Operating as a private independent software company, recently integrated as part of PartnerOne.
Strategic Partnerships: Certified Microsoft Gold Partner for Application Development and long-standing Hewlett Packard Enterprise (HPE) partner.
Insider Technologies Limited (ITL) in 2001, Salford Quays, Chandlers Point
🌐 Core Domain & Industries Served
The company delivers real-time, event-driven diagnostic, tracking, and compliance middleware solutions across three main highly-regulated global verticals:
Government & Defence: Secure enterprise military messaging tracking and digital evidence handling.
Telecommunications: Tracking data traffic and critical infrastructure middleware.
🛠️ Core Technology Stack & Competencies
Insider Technologies specializes in niche high-availability operating environments—specifically HPE NonStop (historically Tandem Computers and HP NonStop) running Guardian and Open System Services (OSS) environments—alongside enterprise Windows, Linux, and Unix systems. Their expertise spans database transaction management, BASE24 XPNET monitoring, IBM WebSphere MQ tracking, and low-level development (SQL, TAL, TACL, COBOL85, C++, Pathway).
Insider Technologies – Core products in 2003
In-Depth Product & Political-Technical Timeline
This timeline breaks down how Insider Technologies evolved its software suite. It demonstrates how their technical development directly responded to shifting geopolitical landscapes—ranging from late-Cold War military messaging security to post-9/11 financial regulations and modern European cloud autonomy initiatives.
🔹 The Foundation & Legacy Tandem Era (1989–1999)
Political Context: The final years of the Cold War and the 1990s globalization boom demanded high-security, fault-tolerant mainframes for NATO-aligned military communications and early global banking clearing networks.
Technical Context: Tandem Computers dominated the un-interruptible 24/7 market. Software was required to monitor these platforms without causing processing overhead.
1989
Company Incorporation: Insider Technologies is incorporated in the UK to engineer bespoke software for highly robust technical ecosystems.
1990–1995
Reflex (Core Release): Release of Reflex, a foundational service management and real-time transaction diagnostic tool built specifically for the Tandem Guardian operating system.
1996–1999
MultiBatch Software: Further Develop and Extend MultiBatch to orchestrate and safely automate complex batch processing on Tandem machines alongside the evolution into HP NonStop computing frameworks.
Y2K Compliance Focus: Technical adjustments were deployed across Reflex and MultiBatch to assure financial institutions that automated transaction logging would not fail during the millennium rollover.
🔸 The Multi-Platform & Financial Compliance Era (2000–2015)
Political Context: Following the September 11 attacks, global anti-money laundering (AML) and counter-terrorism financing (CTF) frameworks heavily expanded. Financial regulators demanded exact, audible end-to-end payment tracking.
Technical Context: Enterprises began migrating away from single-architecture mainframes toward heterogeneous IT environments, requiring tools that could jump across Windows, Unix, and Linux simultaneously.
2002–2004
Sentra Development: Launch of Sentra, expanding the firm’s portfolio beyond HPE NonStop into cross-platform environment monitoring for Windows, Linux, and Unix systems.
Reflex 80:20 & Reflex ONE24: Advanced variations of the Reflex tracking system were built to cater to specialized real-time electronic payment flows like BASE24 with XPNET.
2005–2010
RTLX Reactor (page 12) and Middleware Monitoring: The release of RTLX Reactor provided message tracking capabilities tailored for IBM WebSphere MQ, allowing institutions to trace various payment and other data through complex middleware chains.
Corporate Structuring: The creation of Insider Technologies (Holdings) Limited reinforced corporate expansion as the company deepened its footprint in secure military messaging for government defense bodies.
🔹 The Cyber Autonomy & Sovereignty Era (2016–Present)
Political Context: Escalating nation-state cyber warfare, strict GDPR regulations, and the UK/EU push for technological sovereignty and domestic digital ecosystem resilience heightened the reliance on trusted, onshore technology suppliers.
Technical Context: High-threat environments demand zero-trust visualization, time-accurate logging across digital evidence files, and advanced protection against internal exfiltration vectors.
2019
30-Year Milestone & Modernization: The company celebrates its 30th year, accelerating development on modern mobile application extensions to permit real-time, remote secure alerts for operations teams.
2022–2025
PartnerOne Integration: Insider Technologies aligns its operations under the PartnerOne portfolio, preserving its UK identity while supercharging its enterprise-scale data infrastructure solutions.
Corporate Integration combines Insider’s expertise with PartnerOne’s portfolio to deliver advanced analytics and secure messaging systems to banking, defence, and telecommunications markets.
Defense and Public Safety Porting: Technical deployment of specialized capabilities covering digital evidence security, timekeeping tracking, and legacy virtualization modules aimed explicitly at helping the UK Government maintain its historical tech stacks safely.
RTLX Reactor (in 2012) for tracking BASE24-eps & BASE24 XPNET transactions
Insider Technologies Limited (ITL), Company Overview and Timeline by Year
The Insider RTLX product at ETI-NET is now called C-Deep for Transaction Monitoring;
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