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AIP Core provides a number of Technical Size metrics which are designed to measure the size of specific items such as code lines, comment lines or specific artifact types. These metrics are also used by other structural rules provided by CAST. Some Technical Size result data is provided in the Health Dashboard:


A list of available Technical Size metrics is shown below - where no information is provided in the Comment column this is simply because the metric is self-explanatory.

IDMetric nameComment
19192Number of ABAP Transactions-
19191Number of ABAP User-Exits-
10152Number of Artifacts-
10155Number of Classes-
10151Number of Code Lines

Number of Code Lines (LOC) is measured as the number of source code lines excluding comments and blank/empty lines. The algorithm used by CAST is as follows for all object types (For container type objects, the algorithm includes lines of code of children objects) identified by CAST:

  • BEFORE pre-processing source code
  • IGNORE binary files and 3rd party files included in application
    • REMOVING blank lines (i.e., only LF + CR or LF or CR) 
    • REMOVING comments (can be single line comments or multi line comments)
    • COUNT remaining lines of code 

More generally, there are two contexts for LOC measurement.

  • First context is Technical Sizing. In this context, source files are taken into account. More specifically, objects that are analyzed by CAST whose type inherit from the "APM Sources" category.
  • Second context is Quality Measurement. In this context, Source Files, Artifacts, and specifically targeted object types are taken into account.

 It is used as a basis for several major features:

  • LOC is used to validate analysis boundaries 
  • LOC is also used to compare sizes between two different versions of source code
  • Some quality rules relly directly on this value:  
    • E.g. Avoid XXX too many Lines of Code, etc.
    • Commented-out Code Lines/Code Lines ratio (% of LOC) ensures the absence of too much commented-out code lines within the comment lines
    • Complexity Volume (% of LoC) ensures that the volume of complex code is kept low enough
    • Copy Pasted Code (% of LOC) ensures that the volume of duplicated code is kept low enough
See also Core Metrics which is an extension that provides an alternative Code Lines counting mechanism.
10107Number of Comment Lines

Number of Comment Lines is measured as the number of all comment lines including mono-line and multi-line comments.

10109Number of Commented-out Code Lines

Number of Commented-out Code Lines is measured as the number of all comment lines that contain source code only.

Please note that unless the following criteria are met by the source code, then the metric will be disabled:

  • the source code must contain more than 20 "clean" comments
  • the source code must contain at least 80 artifacts that have more than 10 lines of code

What is a "clean" comment?

  • if the comment contains more than 4 words, then there must be less than 40% OOVs
  • if the comment contains less than 5 words, then there must be a maximum of 1 OOV
  • a single word on its own must not represent 50% of the comment

What is an "OOV"?

An "OOV" is an "Out of Vocabulary Word". With regard to CAST, an OOV is a word that has never appeared in the code.

19173Number of Copybooks-
19174Number of Datablocks-
19169Number of Datawindows-
10167Number of Events-
10154Number of Files-
10157Number of Forms-
19181Number of Function Pools-
10162Number of Functions-
19175Number of Functions and Procedures-
19180Number of Includes-
10160Number of Interfaces-
19168Number of Macros-
10161Number of Methods-
19177Number of Modules-
19176Number of Namespaces-
10166Number of Packages-
19172Number of Paragraphs-
19182Number of Processing Screens-
10156Number of Programs-
19171Number of Sections-
10158Number of SQL Artifacts-
10163Number of Tables-
19184Number of Template Class Instances-
19183Number of Template Classes-
19190Number of Template Function Instances-
19189Number of Template Functions-
19186Number of Template Interface Instances-
19185Number of Template Interfaces-
19188Number of Template Method Instances-
19187Number of Template Methods-
10165Number of Triggers-
19178Number of Units-
19170Number of Userobjects-
10164Number of Views-
10159Number of WEB Pages-
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