Project Plan Details | IBM OS/390 specification

3.4.2.2 Project Plan - Details

ID	Task Name	Projected		Actual

		Start	End	Start	End

01	Project Approval			01/09/98	01/09/98

02	Application Inventory			01/09/98	08/24/98

03	Initial & Inventory Supplies			01/09/98	03/10/98

04	0 % Missing			03/10/98	03/10/98

05	General Inventory Supply Every 3 Weeks			03/10/98	08/24/98

06	Less than 2% Missing			02/01/98	02/01/98

07	Project Planning	01/09/98	09/21/98

08	Project Plan			01/09/98	02/13/98

09	Develop Project Plan			01/09/98	01/23/98

10	Present Project Plan			01/23/98	01/23/98

11	Review & Complete Project Plan			01/23/98	02/13/98

12	Online Test Plan & Scripts			02/14/98	04/26/98

13	Provide Online Test Orientation			02/14/98	02/14/98

14	Develop Online Test Plan & Scripts			02/15/98	04/26/98

15	Review Online Test Plan & Scripts			02/15/98	04/26/98

16	Batch Test Plan & Scripts			03/28/98	06/07/98

17	Provide Batch Test Orientation			03/28/98	03/28/98

18	Develop Batch Test Plan & Scripts			03/29/98	06/07/98

19	Review Batch Test Plan & Scripts			04/12/98	06/07/98

20	Switchover Plan			07/05/98	09/21/98

21	Develop Switchover Plan			07/05/98	07/18/98

22	Provide Switchover Test Orientation			07/19/98	07/19/98

23	Complete & Refine Switchover Plan			07/19/98	09/21/98

24	Online Application Conversion	02/01/98	04/26/98

25	COBOL Program Conversion			02/01/98	04/26/98

26	Develop COBOL Online Conversion			02/01/98	04/26/98
	Specifications

27	Develop Automated COBOL Online			02/15/98	04/26/98
	Conversion

28	Perform Manual COBOL Online			04/12/98	04/26/98
	Conversion

29	Map, Table, Data Conversion			03/01/98	04/26/98

30	Migrate CICS Maps			03/01/98	04/26/98

31	Setup CICS Application Tables			03/29/98	04/26/98

32	Migrate CICS Application Files &			03/29/98	04/26/98
	Databases

33	Online Tests Can Start			04/26/98	04/26/98

34	Online Application Tests & Corrections	04/26/98	08/30/98

35	Participate in Online Initialization Tests			04/26/98	05/10/98

36	Perform Online Sample Tests			05/10/98	06/07/98

37	Online Application Tests Can Start			06/07/98	06/07/98

58VSE to OS/390 Migration Workbook

OS/390 specifications

IBM OS/390, a versatile operating system, was a cornerstone in enterprise environments and played a pivotal role in mainframe computing. Released in the mid-1990s, OS/390 combined the strengths of IBM's MVS (Multiple Virtual Storage) with new features and enhancements, targeting scalability, reliability, and performance in demanding business applications.

One of the key features of OS/390 was its robust support for multiple users and processes. The system allowed thousands of concurrent users to access applications and data, ensuring high availability and minimizing downtime—a critical requirement for many large organizations. This scalability was supported through various enhancements in memory management and processor scheduling, enabling optimal resource allocation across diverse workloads.

OS/390 was known for its superior workload management capabilities. The Workload Manager (WLM) component allowed administrators to define service policies, specifying how system resources would be allocated according to the priority of tasks. This ensured that critical business processes received the necessary resources while less critical tasks were managed more flexibly.

Another significant characteristic of OS/390 was its commitment to security. The operating system provided comprehensive security features, including user authentication, data encryption, and auditing capabilities. This focus on security was vital for organizations handling sensitive data, ensuring compliance with regulations and safeguarding against unauthorized access.

OS/390 also supported advanced technologies that facilitated integration and development. The system included features like the IBM CICS (Customer Information Control System) for transaction processing and IMS (Information Management System) for database management. These technologies allowed organizations to build robust, high-performance applications tailored to specific business needs.

The ease of network integration was another strength of OS/390. With the advent of the Internet and global connectivity, OS/390 systems could easily interface with various network protocols, enabling businesses to operate in a connected world. This inclusion paved the way for many organizations to expand their capabilities and offer new services, driving digital transformation.

In conclusion, IBM OS/390 represented a significant advancement in mainframe technology, combining scalability, security, and robust workload management. Its rich feature set and support for critical enterprise applications solidified its role as a vital component of many organizations' IT infrastructures, ensuring they could meet their operational challenges head-on while supporting future growth. As technology continues to evolve, the legacy of OS/390 remains influential in the realm of computing.

IBM OS/390 manual Project Plan Details

Models: OS/390

3.4.2.2 Project Plan - Details

Task Name

58VSE to OS/390 Migration Workbook

OS/390 specifications