Methods, systems, and apparatus, including computer program products, for implementing a software architecture design for a software application implementing time recording. The application is structured as multiple process components interacting with each other through service interfaces, and multiple service operations, each being implemented for a respective process component. The process components include a Project Processing process component that supports the management of projects, a Time and Labor Management process component that supports the management of employees timekeeping and work planning, an Accounting process component that records relevant business transactions, a payroll processing process component that supports the execution and monitoring of payroll processes, and a Goods and Service Acknowledgement process component that receives a confirmation from an employee of goods received or services rendered.