Tenderers who fail to provide a description, or who only provide generic  content, which does not specifically describe the relevance of the  contract reference with regard to the minimum level of capacity  detailed above, will be considered as not having the technical and  professional capacity to perform the contract.  The references must concern at least 3 different clients. Departments,  divisions, directorates, and other entities of a same body (including the  same EU Institution) will be regarded as the same client. Each EU  Institution (including an EU agency) is considered a different client. Under a framework contract (or framework contracts) with different  specific contracts, a specific contract (alone or in combination with  other specific contracts) can be used only once (i.e. it will be considered  as a single reference). In case of a joint tender, the same reference  contract cannot be submitted as a separate contract reference by  different economic operators for the same tender. The  Contracting Authority may request  statements issued by the  clients , public or private, as supporting documents for each contract  reference. These documents should be ready to be provided within five  working days of the  Contracting Authority ’s request. The contact  persons for the customers indicated in the contract reference form may  be contacted in the context of this call for tenders to crosscheck the  validity of the information provided as evidence. Criterion T1  Capacity to deliver on projects similar in scope and complexity as required  under this Framework Contract  Minimum  level of  capacity  1. The tenderers must have worked on at least  10 contracts 17  with  at least  3 different clients  over the last  4 years  (i.e. 23/11/2016  – 08/01/2021 ).  2. The 10 contract references must cover the provision of Grow and  Run services in the following domains:  - Information systems development  –  minimum 5 references;  - Information systems takeover  –  minimum 2 references;  - Information  systems  operations  (including,  support,  maintenance and application management)  – minimum 3  reference.  3. Minimum volumes for each referenced contract for  Information  systems development: LOT 2  17  Specific contracts under a framework contract, direct contracts (i.e. not under a framework contract) or sub- contracts. 23