Generating a product model

An apparatus for generating a product model from an application system, comprising:

• a memory having computer readable instructions;
• and
• a processor for executing the computer readable instructions, the computer readable instructions including:
• extracting from source code of a first application system developed using a procedure-oriented programming language at least one transaction definition associated with the source code, each transaction definition of the at least one transaction definition describing a transaction in a product implemented by the source code of the first application system;
• dividing the at least one transaction definition into at least one product category;
• and
• with respect to a current product category of the at least one product category, selecting from transaction code in the source code of the first application system at least one variable parameter associated with a transaction definition in the current product category based on a call of the variable parameter in the source code of the first application system;
• building the product component from the at least one variable parameter by analyzing a data definition in the source code of the first application system;
• generating the product model based on the current product category and the product component;
• and
• migrating the first application system to a second application system using the product model, wherein the second application system is developed using an object-oriented programming language;
• wherein the product component comprises at least one product parameter associated with the product category, and the product model includes an association relationship between the product category and the at least one product parameter,
• wherein the product component is generated at least in part by clustering a plurality of product parameters according to a common product component and a deposit product component, and
• wherein deposit product component represents various transaction definitions associated with a deposit product.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer processor to cause the computer processor to perform a method comprising:

• extracting from source code of a first application system developed using a procedure-oriented programming language, at least one transaction definition associated with the source code, each transaction definition of the at least one transaction definition describing a transaction in a product implemented by the source code of the first application system;
• dividing the at least one transaction definition into at least one product category;
• and
• with respect to a current product category of the at least one product category, selecting from transaction code in the source code of the first application system at least one variable parameter associated with a transaction definition in the current product category based on a call of the variable parameter in the source code of the first application system;
• building the product component from the at least one variable parameter by analyzing a data definition in the source code of the first application system;
• generating the product model based on the current product category and the product component;
• migrating a legacy, the first application system to a modern second application system using the product model, wherein the second application system is developed using an object-oriented programming language;
• wherein the product component includes at least one product parameter associated with the product category, and the product model includes an association relationship between the product category and the at least one product parameter,
• wherein the product component is generated at least in part by clustering a plurality of product parameters according to a common product component and a deposit product component, and
• wherein deposit product component represents various transaction definitions associated with a deposit product.