A method of encoding information involves the application of multiple codes sequentially, following a pre-defined, step-by-step procedure executed by human operators. This process relies on established coding systems, such as substitution ciphers or alphanumeric conversions, which are applied in a predetermined order. For instance, a message could first be converted to numbers, then have those numbers transformed using a mathematical function, all guided by a written set of instructions.
Such a meticulous, hands-on approach ensures traceability and allows for a high degree of customization. Its value lies in scenarios demanding rigorous security protocols or when automated systems are unavailable or unreliable. Historically, these manual techniques were vital in secure communication, particularly in military intelligence and early forms of data encryption. They offered a layer of complexity and control difficult to replicate with simpler, automated methods.