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CAST AI Administrator

Summary: this page lists:

  • Impacts of changes made to CAST AIP 8.3.24 on Quality Model results post upgrade
  • Other impacts of changes made in CAST AIP 8.3.24

All changes in results related to extensions are now listed in the extension documentation and will not appear in this page.

Impacts of changes made in CAST AIP 8.3.24 on Quality Model results post upgrade

Mainframe

Support for VSAM commands in "SYSIN" clauses

Support has been introduced for VSAM commands in "SYSIN" clauses, for example:

  • ALLOCATE
  • ALTER
  • DEFINE
  • DELETE
  • EXAMINE
  • LISTALC
  • LISTCAT
  • LISTDS
  • PRINT
  • REPRO
  • VERIFY

As a result, existing results may be impacted if a consistency snapshot is generated: the number of violations for some Mainframe rules may change (increase or decrease) and 

New rules enabled

The following new rules have been enabled in CAST AIP 8.3.24 - as a result after upgrade to CAST AIP ≥ 8.3.24 and the generation of a consistency snapshot:

  • a change in the number of violations for your Mainframe application may be visible (an increase or decrease is possible)
  • a change in the number of Cobol related object properties for your Mainframe application may be visible
8468Program semantic should respect the logic of flow execution
8470Avoid using STRING without overflow check
8476Avoid calling unsafe C library functions from COBOL
8478Avoid Buffer Overruns when using ADD, SUBTRACT, MULTIPLY, DIVIDE & COMPUTE statement inside a loop
8480Avoid using PREPARE STMT statement (Dynamic SQL) with STRING containing HOST variables

File descriptor block must be defined with 0 record - 7366

The algorithms used to calculate the rule File descriptor block must be defined with 0 record - 7366 have been improved to reduce the number of false positive violations returned by this rule. As a result of this fix, existing results may be impacted for the rule if a consistency snapshot is generated - less false violations will be reported therefore improving accuracy.

Other impacts of changes made in CAST AIP 8.3.24

CAST Architecture Checker related

A bug has been discovered in previous releases of CAST AIP Core: when Layers (created in CAST Architecture Checekr (whether the standalone application or Architecture Studio in AIP Console) share objects (i.e. the same object is matched by multiple Layers), the number of violations reported by the rule in the CAST Dashboards was not correct. If the same link was violating the rule between two different Layers, only one was considered and sometimes the Layers were selected in a way which would change the results for the same model. 

An example is shown below: the number of links between Layer L1 and Layer A2 (2 links) is less than between Layer L1 and Layer B1 (57 links). In reality, the number of links between Layer L1 and Layer A2 should be more than between Layer L1 and Layer B1 because B1 is a subset of A2:

Click to enlarge

This bug has been corrected in CAST AIP 8.3.24 as shown below:

As a result of this fix, after an upgrade to CAST AIP ≥ 8.3.24 the number of "overlapping objects" (those that belong to more than one Layer) will increase, and as a result, the number of violations of the associated Architecture Model rule will also increase - this increase will be visible in the CAST Dashboards.

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