A record structure is declared to hold data relating to components being produced in a factory: TYPE Component DECLARE Item ID : STRING DECLARE Reject : BOOLEAN DECLARE Weight : REAL ENDTYPE The factory normally produces a batch (or set) of 1000 components at a time. A global array is declared to store 1000 records for a batch: DECLARE Batch : ARRAY [1:1000] OF Component Two global variables contain the minimum and maximum acceptable weight for each component. The values represent an inclusive range and are declared as: DECLARE Min, Max : REAL

1. (a)(i)A program uses a variable This Index as the array index to access a record. Write a pseudocode clause to check whether or not the weight of an individual component is within the acceptable range.[3]
2. (a)(ii)When batches of less than 1000 components are processed, it is necessary to indicate that certain elements in the array are unused. Suggest how an unused array element could be indicated.[1]
3. (b)A module InRange() will: • be called with an integer parameter representing an index value of a record in the Batch array • check if the weight of the indexed component is within the acceptable range • return TRUE if the weight is in the range and FALSE if it is not. A module BatchCheck() will: • iterate through a batch of 1000 component records • call module InRange() to check each individual component record • keep a count of the number of components that fail • output a suitable warning message and immediately stop if the number of failed components exceeds 5. Complete the program flowchart to represent the algorithm for module BatchCheck(). [Figure 3.1][5]

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