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Paul R. Messina — Stack matrix 1990–2026

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Paul R. Messina — Stack matrix

Presence of each stack item per year (1990–2026), from the okf/ knowledge base. Chronological by first use. Generated 2026-07-07.

1990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026
COBOL
C
Bash / shell scripting
Awk
Perl
Unix / Linux
TCP/IP
Informix
Oracle
Sybase
BSD Sockets / TLI
CTI integration
open technologies
SCADA
corporate networking
Telecom VAS
Telecom billing
ATM programming & monitoring
systems integration
multimedia
Web development (portals, apps)
GDS integration
Hosting virtualization / VPS
DNS
Banking systems (Basel 2)
Firewalls / VPN / NAT / SSL-TLS
Apache
PHP
MySQL
VMware
Ceph
AWS
Enterprise storage (IBM / EMC SAN)
Torque / Maui
Slurm
Beowulf clusters
Ansible
Jenkins
GitLab
Jira
PostgreSQL
MongoDB
Nagios
Munin
OpenLDAP
Squid
SUSE
Pentaho
Kubernetes
GCP
Terraform
Pulumi
GitHub Enterprise
SonarQube
Docker
ELK Stack
J2EE / Spring / Angular
Retool
AI-assisted engineering tools
OpenFaaS
Config-as-Code
GitHub Copilot
Claude / Claude Code
RooCode / OpenCode
Kafka
Airflow
ClickHouse
Grafana
VictoriaMetrics
Azure Entra / LDAP
Confluence
Zoom / PeerTube
used that year not used