| Algorithms (qmptc0121m000) |  |
| Use this session to display algorithms. In the details session, you can define and/or maintain algorithms. Note When you define a new algorithm, you cannot fill out the Expression field until you have completed the following procedure: Define an algorithm in this session. If you have not defined any variables, define the variables of the expression in the Algorithm Variables (qmptc0123m000) session. Link the variables to the algorithm in the Algorithm - Variables (qmptc0122m000) session. Select the algorithm to which you want to link an expression in the Algorithms (qmptc0121m000) session, and fill out the Expression field. You can define an expression in the Expression field that contains variables with different characteristic units. For example, to calculate the content of a barrel, enter the following expression:
    area (in cm2) * height (in meters)
However, make sure that you convert the expression to the algorithm unit that you enter in the Algorithm Unit field. For example, if you enter cm3 in the Algorithm Unit field, you must enter the following expression in the Expression field:
    area (in cm2) * height (in meters) * 100
A maximum of 99 variable codes can be used to formulate the expression of an algorithm (see session Algorithm Variables (qmptc0123m000). Any desired variable can be defined and assigned to a variable code using subsession Algorithm - Variables (qmptc0122m000). Note If the expression for an algorithm is not valid, the algorithm cannot be used in sessions Inspection Order - Lines (qmptc1101m000) and Inspection Order - Lines (qmptc0151m000). If an algorithm is inserted, the general data must be entered and saved first by means of option "Update". After this, it is possible to enter an expression. Related topics Algorithms in quality management Syntax for expressions Quality ID's and quality combinations
Fields | Description
Algorithm | An expression that is used to compute a characteristic by means of other variables or fixed characteristics.
Search Key | An alternative form of a description used for convenience during searching. Typically, it is an abbreviation, an acronym, or a mnemonic alternative to a full description.
Expression | Indicates the way in which the algorithm value is calculated. You can define an expression that contains variables with different characteristic units. For example, you can calculate the content of a barrel by entering the following expression:
    Area (in cm2) * Height (in meters)
However, make sure that you convert the expression to the algorithm unit that you enter in the Algorithm Unit field. For example, if you enter cm3 in the Algorithm Unit field, you must enter the following expression in the Expression field:
    Area (in cm2) * Height (in meters) * 100
Related topics Syntax for expressions
Algorithm Unit | The unit in which the result of the algorithm is expressed. Note When an algorithm is inserted, ERP LN checks the units of the algorithm and the related characteristics, because both units must have the same physical quantity. ERP LN does not check whether the correct conversion factors are used.