An information retrieval system comprising: stored information regarding at least one or more of an input and/or output component, a process, a piece of equipment or a part of a control system or a part of a plant and further including an interface ; wherein the interface is in communication with the control system and is configured to receive from the control system one or more state indications indicating state information regarding the at least one or more of: the input and/or output component, the process, the piece of equipment, the part of the control system, or the part of a plant, wherein the system further comprises: an information module ; a segmenting and linking module configured to: segment the stored information, and link the segmented information with one or more state indications; wherein the information module is configured to store the segmented information; and a user interface configured to control the information retrieval system enabling a user to select one or more of the received state indications and thereby retrieve the stored segmented information linked with the one or more selected state indications; and characterised in that if the stored information is a multipage document the segmenting and linking module is further configured to input one or more page numbers containing information relevant to the state indication, such that the retrieved information includes only that page or those pages. stored information regarding at least one or more of an input and/or output component, a process, a piece of equipment or a part of a control system or a part of a plant and further including an interface ; wherein the interface is in communication with the control system and is configured to receive from the control system one or more state indications indicating state information regarding the at least one or more of: the input and/or output component, the process, the piece of equipment, the part of the control system, or the part of a plant, wherein the system further comprises: an information module ; a segmenting and linking module configured to: segment the stored information, and link the segmented information with one or more state indications; wherein the information module is configured to store the segmented information; and an information module ; a segmenting and linking module configured to: segment the stored information, and link the segmented information with one or more state indications; wherein the information module is configured to store the segmented information; and segment the stored information, and link the segmented information with one or more state indications; wherein the information module is configured to store the segmented information; and a user interface configured to control the information retrieval system enabling a user to select one or more of the received state indications and thereby retrieve the stored segmented information linked with the one or more selected state indications; and characterised in that if the stored information is a multipage document the segmenting and linking module is further configured to input one or more page numbers containing information relevant to the state indication, such that the retrieved information includes only that page or those pages. <EOS>