[dsl.fpa] FPA DSL¶ ↑
{{ parent: dsl }}
The System shall provide FPA DSL
to estimate software development effort by Function Point Analysis (FPA) methodology. An example of FAP DSL
file is as follows.
ILF 'Product', det: 20, ret: 3 ILF 'Customer', det: 20, ret: 2 ILF 'Order', det: 10, ret: 1 EO 'CustomerView', det: 20, ftr: 1 EI 'CustomerEdit', det: 20, ftr: 2 EQ 'CustomerEdit', det: 20, ftr: 2 characteristics ({ data_communications: 0, distributed_data_processing: 0, performance: 0}) # calculate
[dsl.fpa.skip] Skip¶ ↑
The System shall provide FPA DSL
function skip
. This function shall have the same meaning, parameters and behavior as Tracing DSL
function skip
[[dsl.trace.skip]]
[dsl.fpa.ilf] ILF (Internal Logical File)¶ ↑
The System shall provide FPA DSL
function ILF
to add new ILF estimation for object.
The ILF
function must accept the following parameters.
Parameter | Type | M | Description :——– | —— | - | :——————— object | Object
| Y | Estimated object det: | Number | Y | Number of Data element type ret: | Number | Y | Number of Record element type
[dsl.fpa.eif] EIF (External Interface File)¶ ↑
The System shall provide FPA DSL
function EIF
to add new EIF estimation for object.
The EIF
function must accept the following parameters.
Parameter | Type | M | Description :——– | —— | - | :——————— object | Object
| Y | Estimated object det: | Number | Y | Number of Data element type ret: | Number | Y | Number of Record element type
[dsl.fpa.ei] EI (External Input)¶ ↑
The System shall provide FPA DSL
function EI
to add new EI estimation for object.
The EI
function must accept the following parameters.
Parameter | Type | M | Description :——– | —— | - | :——————— object | Object
| Y | Estimated object det: | Number | Y | Number of Data element type ftr: | Number | Y | Number of File type record
[dsl.fpa.eo] EO (External Output)¶ ↑
The System shall provide FPA DSL
function EO
to add new EO estimation for object.
The EO
function must accept the following parameters.
Parameter | Type | M | Description :——– | —— | - | :——————— object | Object
| Y | Estimated object det: | Number | Y | Number of Data element type ftr: | Number | Y | Number of File type record
[dsl.fpa.eq] EQ (External Inquiry)¶ ↑
The System shall provide FPA DSL
function EQ
to add new EI estimation for object.
The EQ
function must accept the following parameters.
Parameter | Type | M | Description :——– | —— | - | :——————— object | Object
| Y | Estimated object det: | Number | Y | Number of Data element type ftr: | Number | Y | Number of File type record
[dsl.fpa.sysch] Characteristics¶ ↑
The System shall provide FPA DSL
function characteristics
to provide adjustment information about system characteristics for full estimation.
The EQ
function must accept the following parameters.
Parameter | Type | M | Description :————– | —- | - | :—————————– characteristics | Hash | Y | Hash of system characteristics
[dsl.fpa.calc] Calculate¶ ↑
The System shall provide function calculate
for FPA DSL
. This function shall calculate number of unadjusted function points, adjustment factor and number of function points and return hash of the calculation result {{ufp: 57, vaf: 0.65, fp: 45}}
.
Calculation result of FPA DSL
function calculate
Key | Type | Description :– | :—– | :———————————- ufp | Number | Total of unadjusted function points vaf | Number | Adjustment factor value fp | Number | Total of fnction points
[dsl.fpa.dup] Duplicates¶ ↑
When an estimations is being added through skip
or ILF, EIF, EO, EI, EQ
functions, if requirement with the same id is already estimated, the System shall abort the execution with the following error message Requirement <id> is already estimated. Operation aborted.