The objectives of this bachelor thesis are understandable and clear description of OpenUP methodic and cross-references in chapters between method contents. It is used the way to study all expert resources especially the methodic to fulfilling them. The main contribution of this thesis is understandable a clearly described OpenUP in Czech language and cross-references between method contents. These references are also listed collectively in attachments. The reader is introduced to OpenUP (what is its structure, what it offers) at beginning of reading and then is detailed the lifecycle, practices and roles with great accent to cross-references.