The Zakat, Tax & Customs Authority (ZTCA), previously the General Authority for Zakat and Tax (GAZT), is the Saudi Arabian taxation authority with recently added additional responsibilities for customs operations in the kingdom.

The Authority commissioned a project, led by Roger, to better understand, model, and improve its business processes. Via a series of workshops with various stakeholders, a high-level process architecture was developed and documented.

The performance of key processes was then reviewed, and process governance arrangements were designed and implemented.

In a later project a BPM maturity assessment was completed for GAZT resulting in maturity development targets for the following 12 months and a roadmap for achieving them.