Open Skies coded and developed the web interface for OpenRes, called "TakeFlight". The court refers to Navitaire and Open Skies, Inc. collectively as Navitaire. The "TakeFlight" module consists only of source code. Navitaire developed an airline booking system called "OpenRes". Its predecessor (Open Skies) had licensed the software to easyJet. easyJet did not have access to the underlying code, and Navitaire does not suggest that easyJet or BulletProof had access to "OpenRes". However, after studying the functionality of OpenRes, easyJet and Bulletproof developed a system called "eRes" and also a web interface that was substantially indistinguishable from OpenRes. easyJet does not dispute the allegation that it wanted a new system that was substantially indistinguishable from OpenRes' interface. Also, it is not disputed that the underlying code of eRes does not resemble OpenRes' codes at all. easyJet created its program by studying and observing how Navitaire's system worked. Although the code is different, "eRes" acts upon identical or very similar inputs and produces similar results as "OpenRes". Thus, Navitaire filed an action in copyright law based alleging copyright infringement based on "non-textual copying." Specifically, Navitaire claimed that the similarity of the "business logic" (that is the overall look and feel of the software) and functionality of the software rose to the level of "non-textual copying." Also, with regards to "TakeFlight" it is known that easyJet copied and modified on several occasions to fix bugs, provide for the display of promotions, etc. and to provide the foreign language interfaces as the code was not internationalized. Navitaire alleges easyJet breached the license and again is alleging "non-textual copying" of the software when easyJet produced a user interface with the same "look and feel" of TakeFlight. As a general matter, the Court stated that: "To emulate the action of a piece of software by the writing of other software that has no internal similarity to the first but is deliberately designed to 'look' the same and achieve the same results is far from uncommon. If Navitaire are right in their most far-reaching submission, much of such work may amount to the infringement of copyright in the original computer program, even if the alleged infringer had no access to the source code for it and did not investigate or decompile the executable program." Non-Textual Copying can be raised when access is not an issue. There are three aspects of non-contextual copying:  The OpenRes system consists of a database as well as a series of programs that manipulate the data.